Power steering gear

Claim 1

IN A POWER STEERING GEAR FOR AN AUTOMOTIVE VEHICLE, A HOUSING, A SECTOR GEAR PIVOTALLY MOUNTED IN SAID HOUSING FOR ROCKING MOTION AND HAVING MEANS OPERABLY CONNECTIBLE WITH THE DIRIGIBLE WHEELS OF SAID VEHICLE TO STEER THE SAME UPON ROCKING OF SAID GEAR, A GEAR RACK SHIFTABLE TRANSVERSELY OF THE PIVOT AXIS OF SAID SECTOR GEAR AND MESHED THEREWITH TO EFFECT SAID ROCKING, SAID RACK TERMINATING AT ONE END IN A TUBULAR EXTENSION HAVING AN AXIS PARALLEL TO THE DIRECTIONS OF SHIFTING OF SAID RACK AND HAVING A RADIAL SHOULDER THEREON CONFRONTING SAID RACK, A PISTON HAVING A TUBULAR EXTENSIONS SLEEVED OVER THE FIRST EXTENSION, THE FIRST EXTENSION ABUTTING A RADIAL SHOULDER ON THE SECOND EXTENSION AND CONFRONTING SAID RACK, SCREW THREADED MEANS SECURED TO SAID SECOND EXTENSION AND ENGAGING THE RADIAL SHOULDER OF SAID FIRST EXTENSION TO URGE THE LATTER SNUGLY AGAINST THE SHOULDER OF SAID SECOND EXTENSION, SAID FIRST AND SECOND EXTENSIONS PROJECTING FROM SAID PISTON IN AXIALLY OPPOSITE DIRECTIONS, A WORM SHAFT ROTATABLE COAXIALLY WITHIN SAID SECOND EXTENSION A WORM FOLLOWER CARRIED BY SAID SECOND EXTENSION AND ENGAGING SAID WORM TO TURN THE SAME UPON AXIAL SHIFTING OF SAID PISTON, AND AN ANNULARLY DISPOSED GUIDE CARRIED BY SAID HOUSING SLEEVED OVER AN END OD SAID SECOND EXTENSION REMOTE FROM SAID PISTON TO GUIDE AXIAL SHIFTING OF SAID SECOND EXTENSION.